vhost: better variable name in logging
We really store a page offset in write_address, so rename it write_page to avoid confusion. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -882,15 +882,15 @@ static int set_bit_to_user(int nr, void __user *addr)
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static int log_write(void __user *log_base,
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static int log_write(void __user *log_base,
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u64 write_address, u64 write_length)
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u64 write_address, u64 write_length)
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{
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{
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u64 write_page = write_address / VHOST_PAGE_SIZE;
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int r;
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int r;
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if (!write_length)
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if (!write_length)
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return 0;
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return 0;
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write_length += write_address % VHOST_PAGE_SIZE;
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write_length += write_address % VHOST_PAGE_SIZE;
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write_address /= VHOST_PAGE_SIZE;
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for (;;) {
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for (;;) {
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u64 base = (u64)(unsigned long)log_base;
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u64 base = (u64)(unsigned long)log_base;
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u64 log = base + write_address / 8;
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u64 log = base + write_page / 8;
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int bit = write_address % 8;
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int bit = write_page % 8;
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if ((u64)(unsigned long)log != log)
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if ((u64)(unsigned long)log != log)
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return -EFAULT;
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return -EFAULT;
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r = set_bit_to_user(bit, (void __user *)(unsigned long)log);
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r = set_bit_to_user(bit, (void __user *)(unsigned long)log);
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@ -899,7 +899,7 @@ static int log_write(void __user *log_base,
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if (write_length <= VHOST_PAGE_SIZE)
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if (write_length <= VHOST_PAGE_SIZE)
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break;
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break;
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write_length -= VHOST_PAGE_SIZE;
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write_length -= VHOST_PAGE_SIZE;
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write_address += 1;
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write_page += 1;
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}
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}
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return r;
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return r;
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}
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}
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